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Feathers that are not cleaned or infected in other places are prone to breeding.
Pests of the beetle family, such as:
Black-skinned beetle. This insect is resistant to dryness, hunger and cold, so it is recommended to seal the sofa well and fumigate it with aluminum phosphide.
You can spread whatever color you like, but it also depends on whether the material is comfortable or not.
Drying at a high temperature of 60 degrees or more for 2 hours, and freezing in a low-temperature freezer for 24 hours can kill insects.
At present, there are three main types of padding for mid-to-high-end sofas on the market. >>>More
This kind of insect seems to be afraid of the sun, I remember when I was a child, the family often took out food to dry to prevent insects, if there is a mothball on the sofa, it is very effective, and the insects are afraid of it.
The question you asked, I didn't see what the bugs you said looked like, it must be impossible to know what bugs were, and there was no way to help you judge, or reissue the photo to take a look.